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What's New?

Is it New Bike Time? Always!
It's pretty obvious this is when people are out on the roads & trails having fun on their new bikes. This is a great time for a new bike because even the worst "winter" you'll see in the Bay Area offers plenty of nice days for riding, and who wants to waste a nice day? Chain Reaction features the very best bikes from Trek & Electra, as well as the highest-quality travel bikes from Bike Friday. Road, Mountain, Hybrid, Electric assist, Kids... we've got them all. Probably the best selection in a single location you'll find anywhere on the peninsula too.
Got a bike that needs repairs?
We can handle that! If you purchased your bike from us, remember that you can bring it in anytime, without calling ahead, for minor on-the-spot adjustments of brakes, gears and wheels (at no charge; this is included with any bike purchased from us). For flat tires, again, no appointment needed. Where possible we try and do flat tires while you wait, but there will be times that's not possible. At most you will be leaving your bike overnight. For normal (bigger) repairs, calling ahead to schedule an appointment might make sense because the repair backlog at better shops sometimes goes from overnight to 5 days in the blink of an eye!
It's E-Bike time at Chain Reaction! E-Bikes are the latest thing; find out why! Commute to the office without needing a shower, bring home the groceries (even if you live on top of a hill!) or keep up with your obsessive-cyclist partner. Prices start at just $1299 (Oyama folding E-bike) up to the incredible Trek Super Commuter 8 at $5199.


Disc Brakes for Road Bikes- Making the right choice

Disc brakes are the latest thing for road bikes. But are they the right choice for you? We discuss the trade-offs including benefits, cost, added weight and maintenance requirements.

Just a few of the bikes we sell. One of them is just right for you!

Electra Cruiser Lux 7D
$449.99 - $469.99 $479.99 - $499.99 Up To 6% Savings
Lightweight aluminum modern cruiser with over twenty years of refinement bu...
Electra Townie Commute 8D Ladies'
$699.99 - $739.99 $789.99 Up To 6% Savings
The Townie Commute 8D is a stylish commuter bike that is built to handle th...
Trek FX S 5 Women's
$1,699.99 - $1,799.99 $1,889.99 Up To 5% Savings
Fitness, simplified FX offers a best-of-both-worlds combination of road ...
Trek Precaliber 24 (7-Speed) - Boys
$339.99 $359.99 6% Savings
Trek’s Precaliber 24 is a true mountain bike perfect for even the most acti...
Electra Townie Original 7D EQ Men's
$609.99 $649.99 6% Savings
You'll love gliding around town on Electra's Townie Original 7D. Comes with...
Trek Marlin 5 Women's
$499.99 $539.99 7% Savings
Marlin 5 Women's is a trail-worthy daily rider that's perfectly suited for ...
Trek Domane AL 2
$699.99 $799.99 13% Savings
Key features - Smooth, comfortable, confidence-inspiring geometry for lo...
Trek Emonda SL 8 WSD - Women's 50cm - LAST ONE!
$3,499.99 $4,499.99 22% Savings
Trek's Emonda SL 8 WSD is an incredibly light bike that rides incredibly we...
Trek Marlin 7
$699.99 - $749.99 $749.99 - $829.99 Up To 10% Savings
Mountain adventure awaits Marlin takes its cue from light, fast XC bikes...
Electra Loft 7i - Women's
$609.99 $649.99 6% Savings
When you've got places to go and things to see, Electra's Loft 7i is your s...
Trek District SSB
$499.99 $879.99 43% Savings
Forget the car, idling in traffic, high parking fees and soaring gas prices...
Trek Dual Sport 1 Women's
$499.99 $539.99 7% Savings
Dual Sport 1 Women's is a hybrid bike in the true sense of the term: it exc...